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Development of the Cognitive Dysfunction Questionnaire (CDQ) in a population based sample
Stockholm University, Faculty of Social Sciences, Department of Psychology.
2011 (English)In: Scandinavian Journal of Psychology, ISSN 0036-5564, E-ISSN 1467-9450, Vol. 52, no 3, 218-228 p.Article in journal (Refereed) Published
Abstract [en]

The study reports on the development of a questionnaire for assessment of adult cognitive dysfunction (CDQ). Participants in a population-based sample (65 +/- 15 years, N = 370) responded to a 90-item pilot version covering multiple aspects of memory/cognition. Based on exploratory principal components analyses and correlations with criterion measures of cognitive functioning (MMSE, Block Design, semantic/episodic memory), 20 items loading on 6 components were selected for the final version of the questionnaire. Cronbach's alpha for the total score was 0.90. There was evidence of construct validity as judged by correlations between CDQ scores, objective cognitive measures, and a subjective memory measure (PRMQ). Discriminant validity was demonstrated by a low and non-significant correlation with depressive symptoms. Further evidence of construct validity was provided by correlations with age and educational attainment. In conclusion, the CDQ is promising as a self-rating screening tool for cognitive dysfunction, and will be the subject of further development and validation.

Place, publisher, year, edition, pages
2011. Vol. 52, no 3, 218-228 p.
Keyword [en]
questionnaire development, subjective memory, self-report measures, cognitive functioning, cognitive dysfunction, cognitive impairment
National Category
Psychology
Research subject
Psychology
Identifiers
URN: urn:nbn:se:su:diva-67856DOI: 10.1111/j.1467-9450.2010.00861.xISI: 000290226100003OAI: oai:DiVA.org:su-67856DiVA: diva2:471629
Note
authorCount :4Available from: 2012-01-02 Created: 2012-01-02 Last updated: 2017-12-08Bibliographically approved

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